From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 735ADC02194 for ; Thu, 6 Feb 2025 17:13:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:References :In-Reply-To:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FEy2g6qBX5wwwF0aD0dYNRzAaTYGo1qYo+CvaHI44bQ=; b=mbY7ZXW9Af5Dil Sg3aJwsMgtp4sac70QxpQcogL/8iW815R0ymEQLpG5/ofF6L47aJnMz518x1BcAE1ctY0Hi4yS040 B470KYvMZ0cd6PVnG7SBLi0Rw2y/p2TIjL2PgWj4lvdYuNptJrUue2jFMYAQ3WqTK/2qAQaKjERwV kUvqTZ1T6AjbODpsUiJM/mMQFJu96KtGZ8YUAY0OycICOPmUi7nXyg5rwIHehzMdWlrW00KWBEnoL ZIkzMc6g4pQO7iCwOJdSbbsYvc291M+tCa4fzxEBNJNarDcRarP5nUvZbEkDZgEPlbdPGvR5K2QCT zypz3vv3IIkdR7D1Oh/A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tg5RV-00000006xa4-1xkj; Thu, 06 Feb 2025 17:13:33 +0000 Received: from relay1-d.mail.gandi.net ([217.70.183.193]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tg5RT-00000006xYK-13je for linux-mtd@lists.infradead.org; Thu, 06 Feb 2025 17:13:32 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id B6D7644346; Thu, 6 Feb 2025 17:13:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1738862008; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=n8qcVxq458N/mAEJuBQV6f51SQeiq0Xrop5ehm7xdCc=; b=G7T7OGzlVio7+/xgaozWsxRnF2LyR3WtY50zNi+iuSGIl27pCtu0FwTJG49dy8DwikeJMz 5pQHFZY84tUItYqhx73EP5X5O3VSPIyMDBnFayxIgHQ2yF5PELNeC2+VtUgVD7BArInjSl bhZ1bnPitEzbncv/yTjPrYvDiqAn2bKu5dT1LyoD3vQ0k0nw9cQo5ArwckVhg6YYWHi9Lx g7tSf654ksf1Hd5QrQduEEnuz421qrbCcik3bYvHTWzqJKDnWJb3Z+DzgDiaNg90sNEUto PvtyiKC39tDOjthvsj8AwdRc1tKZTWKHU4q2hNoHbK5a/pCfex72OMg9yMJ6EA== From: Miquel Raynal To: Cheng Ming Lin Cc: vigneshr@ti.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, richard@nod.at, alvinzhou@mxic.com.tw, leoyu@mxic.com.tw, Cheng Ming Lin Subject: Re: [PATCH v3 1/2] mtd: spi-nand: Add read retry support In-Reply-To: <20250122065605.285145-2-linchengming884@gmail.com> (Cheng Ming Lin's message of "Wed, 22 Jan 2025 14:56:04 +0800") References: <20250122065605.285145-1-linchengming884@gmail.com> <20250122065605.285145-2-linchengming884@gmail.com> User-Agent: mu4e 1.12.7; emacs 29.4 Date: Thu, 06 Feb 2025 18:13:25 +0100 Message-ID: <878qqj3sju.fsf@bootlin.com> MIME-Version: 1.0 X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgddvieelhecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfitefpfffkpdcuggftfghnshhusghstghrihgsvgenuceurghilhhouhhtmecufedtudenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvvefujghffgffkfggtgfgsehtqhertddtreejnecuhfhrohhmpefoihhquhgvlhcutfgrhihnrghluceomhhiqhhuvghlrdhrrgihnhgrlhessghoohhtlhhinhdrtghomheqnecuggftrfgrthhtvghrnhepffeghfejtdefieeguddukedujeektdeihfelleeuieeuveehkedvleduheeivdefnecukfhppeeltddrkeelrdduieefrdduvdejnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepledtrdekledrudeifedruddvjedphhgvlhhopehlohgtrghlhhhoshhtpdhmrghilhhfrhhomhepmhhiqhhuvghlrdhrrgihnhgrlhessghoohhtlhhinhdrtghomhdpnhgspghrtghpthhtohepkedprhgtphhtthhopehlihhntghhvghnghhmihhnghekkeegsehgmhgrihhlrdgtohhmpdhrtghpthhtohepvhhighhnvghshhhrsehtihdrtghomhdprhgtphhtthhopehlihhnuhigqdhmthgusehlihhsthhsrdhinhhfrhgruggvrggurdhorhhgpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheprhhitghhrghrugesnhhougdrrghtp dhrtghpthhtoheprghlvhhinhiihhhouhesmhigihgtrdgtohhmrdhtfidprhgtphhtthhopehlvghohihusehmgihitgdrtghomhdrthifpdhrtghpthhtoheptghhvghnghhmihhnghhlihhnsehmgihitgdrtghomhdrthif X-GND-Sasl: miquel.raynal@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250206_091331_422857_5296042B X-CRM114-Status: UNSURE ( 9.37 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org SGVsbG8gQ2hlbmcsCgo+IEBAIC02ODcsMTggKzY5MSw0MyBAQCBzdGF0aWMgaW50IHNwaW5hbmRf bXRkX3JlZ3VsYXJfcGFnZV9yZWFkKHN0cnVjdCBtdGRfaW5mbyAqbXRkLCBsb2ZmX3QgZnJvbSwK PiAgCQlpZiAocmV0KQo+ICAJCQlicmVhazsKPiAgCj4gK3JlYWRfcmV0cnk6Cj4gIAkJcmV0ID0g c3BpbmFuZF9yZWFkX3BhZ2Uoc3BpbmFuZCwgJml0ZXIucmVxKTsKPiAgCQlpZiAocmV0IDwgMCAm JiByZXQgIT0gLUVCQURNU0cpCj4gIAkJCWJyZWFrOwo+ICAKPiAtCQlpZiAocmV0ID09IC1FQkFE TVNHKQo+ICsJCWlmIChyZXQgPT0gLUVCQURNU0cgJiYgc3BpbmFuZC0+c2V0X3JlYWRfcmV0cnkp IHsKPiArCQkJaWYgKHNwaW5hbmQtPnJlYWRfcmV0cmllcyAmJiAoKytyZXRyeV9tb2RlIDwgc3Bp bmFuZC0+cmVhZF9yZXRyaWVzKSkgewoKSSBiZWxpZXZlIHRoZSBjb25kaXRpb24gc2hvdWxkIGJl OgoKICAgICAgICAgICAgICAgICAgICAgICAgaWYgKHNwaW5hbmQtPnJlYWRfcmV0cmllcyAmJiAo KytyZXRyeV9tb2RlIDw9IHNwaW5hbmQtPnJlYWRfcmV0cmllcykpIHsKClNvIGlmIHlvdSBoYXZl IDUgcmV0cnkgbW9kZXMsIHlvdSBjYW4gcHJvdmlkZSA1IGluIHRoZSBtYW51ZmFjdHVyZXIgZHJp dmVyLAphbmQgbm90IDYuCgo+ICsJCQkJcmV0ID0gc3BpbmFuZC0+c2V0X3JlYWRfcmV0cnkoc3Bp bmFuZCwgcmV0cnlfbW9kZSk7Cj4gKwkJCQlpZiAocmV0IDwgMCkgewo+ICsJCQkJCWVjY19mYWls ZWQgPSB0cnVlOwo+ICsJCQkJCXJldHVybiByZXQ7CgpTaGFsbCB3ZSB0cnkgdG8gc2V0IHRoZSBy ZWFkX3JldHJ5IGxldmVsIHRvIDAgdXBvbjoKCiAgICAgIGlmIChyZXQgPCAwICYmIHJldHJ5X21v ZGUgPiAxKQoKPwoKPiArCQkJCX0KPiArCj4gKwkJCQkvKiBSZXNldCBlY2Nfc3RhdHM7IHJldHJ5 ICovCj4gKwkJCQltdGQtPmVjY19zdGF0cyA9IG9sZF9zdGF0czsKPiArCQkJCWdvdG8gcmVhZF9y ZXRyeTsKPiArCQkJfSBlbHNlIHsKPiArCQkJCS8qIE5vIG1vcmUgcmV0cnkgbW9kZXM7IHJlYWwg ZmFpbHVyZSAqLwo+ICsJCQkJZWNjX2ZhaWxlZCA9IHRydWU7Cj4gKwkJCX0KPiArCQl9IGVsc2Ug aWYgKHJldCA9PSAtRUJBRE1TRykgewoKUmVzdCBsZ3RtLgoKVGhhbmtzLApNaXF1w6hsCgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTGludXgg TVREIGRpc2N1c3Npb24gbWFpbGluZyBsaXN0Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21h aWxtYW4vbGlzdGluZm8vbGludXgtbXRkLwo=